Impact of supercritical CO2 and traditional solvent extraction systems on the extractability of alkylresorcinols, phenolic profile and their antioxidant activity in wheat bran

Gunenc, Aynur; HadiNezhad, Mehri; Farah, Ibrahim; Hashem, A. N.; Hosseinian, Farah

doi:10.1016/j.jff.2014.10.024

Cited by 38 publications

(23 citation statements)

References 42 publications

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“…IDF had higher total phenolic acid content compared to SDF fraction. Most total content of phenolic compounds (PA + FC) in both IDF and SDF fractions were found in insoluble fractions as in our previous study (Gunenc, et al, 2015). For example, 84.24% PA, 75.86% FC and 82.86% of total phenolic compounds were found in IDF fractions.…”

Section: Tdf and Its Phenolicssupporting

confidence: 80%

“…FL micro plate reader was used to read the absorbance during run-time (at an excitation wavelength of 485 nm and an emission wavelength of 525 nm). ORAC values were calculated by the differences of net areas under the FL decay curves between the blank and sample and were expressed as micromole Trolox Equivalents per gram of sample (µmol TE/g) (Gunenc et al, 2015;Ou et al, 2002).…”

Section: Oxygen Radical Absorbance Capacity (Orac) Assaymentioning

confidence: 99%

“…WB, SDF and IDF were alkaline hydrolyzed to release their bound phenolics and followed by liquid-liquid partitioning steps to extract those released phenolic compounds (Gunenc, et al, 2015;Guo & Beta, 2013). More specifically, each sample (WB, SDF, and IDF) were mixed with 2 M NaOH and agitated at room temperature for 4 h. Then, they were acidified (6M HCI) to pH 1.5-2 and liquid-liquid partitioning steps were followed.…”

Section: Phenolic Compound Extractions From Wb Sdf and Idfmentioning

confidence: 99%

“…To separate phenolic acids and flavonoids in a single run with a Synergy-Max-RP column, at 35C, solvent-A (0.01% formic acid:Milli-Q water) and solvent-B (100% acetonitrile) at a flow rate of 1.0 mL/min and a linear gradient program from 90% to 50% solvent A in 35 min was developed. Phenolic acids (280 nm) and flavonoids (320 nm) were identified and quantified using 11 phenolic acids and 10 flavonoid standards (Gunenc, et al, 2015).…”

Section: Hplc Analysis Of Phenolic Compounds From Wb Sdf and Idfmentioning

confidence: 99%

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Wheat Bran Dietary Fiber: Promising Source of Prebiotics with Antioxidant Potential

Gunenc¹,

Alswiti²,

Hosseinian³

2017

JFR

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The potential of wheat bran (WB) addition as a prebiotic source were demonstrated using yogurt with probiotics (Lactobacillus acidophilus and Bifidobacterium lactis). Yogurts (with 4% WB) were significantly (P < 0.05) different in total bacterial counts (9.1 log CFU/mL), and total titratable acidity % (TTA, 1.4%) compared to controls during 28 days cold storage (4C). Additionally, WB-total dietary fiber contents and their bound phenolic profiles were investigated as well as the antioxidant activity of WB-water extractable polysaccharides (WEP) was studied. HPLC analysis of alkaline hydrolyzed DF fractions showed that insoluble DF had higher phenolic acids (84.2%) content than soluble DF (15.8%). Also, crude-WEP showed stronger antioxidant activity compared to purified-WEP with an ORAC of 71.88 and 52.48 µmol TE/g, respectively. Here we demonstrate WB has potentials as a source of prebiotics, which may have the potentials for functional foods and nutraceutical applications.

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Section: Tdf and Its Phenolicssupporting

confidence: 80%

Section: Oxygen Radical Absorbance Capacity (Orac) Assaymentioning

confidence: 99%

Section: Phenolic Compound Extractions From Wb Sdf and Idfmentioning

confidence: 99%

Section: Hplc Analysis Of Phenolic Compounds From Wb Sdf and Idfmentioning

confidence: 99%

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Wheat Bran Dietary Fiber: Promising Source of Prebiotics with Antioxidant Potential

Gunenc¹,

Alswiti²,

Hosseinian³

2017

JFR

Self Cite

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“…Antioxidants can modulate cellular oxidative status and reduce the risk of these diseases and health problems [4][5][6]. Many previous researches demonstrated that wheat grain contained significant level of natural antioxidants [3,[7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Distribution of Phenolic Acids and Antioxidant Activities of Different Bran Fractions from Three Pigmented Wheat Varieties

Zhang

Ding

Dong

et al. 2018

Journal of Chemistry

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Phenolic acid profiles and antioxidant activities of outer bran, coarse bran, and shorts from blue, black, and purple wheat were analyzed. Phenolic acids were mainly in the bound form in pigmented wheat bran fractions. Phenolic acid content decreased in the order of outer bran, coarse bran, and shorts for the three pigmented wheat varieties. HPLC analysis of phenolic extracts demonstrated that the bound form of phenolic acids contained more ferulic, isoferulic, and p-coumaric acids compared to their free counterparts. Among the three pigmented wheat varieties, the bran fractions from blue wheat contained higher bound phenolic acids than the other two pigmented wheat bran fractions, except for purple coarse bran. The blue wheat outer bran had the highest total bound phenolic acid of 3458.71 g/g while the purple wheat shorts had the lowest of 1730.71 g/g. The contribution of bound phenolic acids to the total phenolic content and antioxidant activity was significantly higher than that of free phenolic acids. Blue wheat bran fractions had the highest radical scavenging activity against DPPH• while those of purple wheat gained the highest ABTS•+ scavenging activity. High correlations were observed between TPC and radical scavenging capacities for DPPH and ABTS ( 2 > 0.85, < 0.05).

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Aromatic Bio‐Based Solvents

2017

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Impact of supercritical CO2 and traditional solvent extraction systems on the extractability of alkylresorcinols, phenolic profile and their antioxidant activity in wheat bran

Cited by 38 publications

References 42 publications

Wheat Bran Dietary Fiber: Promising Source of Prebiotics with Antioxidant Potential

Wheat Bran Dietary Fiber: Promising Source of Prebiotics with Antioxidant Potential

Distribution of Phenolic Acids and Antioxidant Activities of Different Bran Fractions from Three Pigmented Wheat Varieties

Aromatic Bio‐Based Solvents

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